Typewriter



A. VAN DER S CHAAFE- I TYPEWRITER. APPLICATION FILED DEC. 22, I9I9.

1,368,865. Patented Feb.15',1921.

FUNETED STATES ATE VAN DER SCHAAFF, OF UTREGHT, NETHERLANDS.

TYPEWRITER.

messes.

Specification of Letters Patent. Patgnted F 1 15 1921 Application filed.December 22, 1919. Serial No. 346,549.

acters for printing.

The invention provides for the necessary cooperation of the partswithout the usual bodily shifting of the carriage or type-bars, and tothis extent provides for a construction which is lighter than the usualconstruction and which is capable of operation with less noise.

In the drawings V Figure '1 is a sectional view illustrative of theconstruction.

Fig. 2 is a view of the guide and typehead therein.

The present improvement provides the us-' ual type-bars 1 withtype-headset, the heads being pivotally connected to the bars at 5, andfrictionally secured against undue play in such connection by springs 6.The fulcrum 2 for each type-bar ismovable in the usual manner by a rod 3connected to the key lever, not shown.

The operative face of the type-head is curved in opposition to thecurvature of the platen, and in the instance shown is provided withthree separate characters arranged at such a distance apartthat under aslight turning of the head on its pivot 5, a particular one of suchcharacters may be in printing position. To insure this operativemovement of the type-head under the printing action of the type-bar,there is provided a guide 7 comprising a hollow shell shaped to receiveeach head as the latter is brought to printing position, and toaccurately guide said head in its movement into contact with the platen.The guide 7 is mounted on pivots 8 supported in the frame of the machineand is formed with a depending arm 9 adapted to be engaged by an off-set10 from the upper end of a rod 12. The rod is actuated to shift theoff-set and thereby turn the guide in its pivotal support, through themedium of a lever 13 fixed on shaft 14:, mounted in the machine andprovided in turn with a lever 15, having on opposite sides thereof nearthe free end, pins-16 and 17. For example, a finger lever 18 pivotallysupported at 19, and lim lted in movement by stop 20 overlies pin 17 oflever 15, so that through operation of said lever 18 to guide 7 will begiven a definite plvotal movement and thereby positioned, so that theprinting head engaged therewith will be accordingly shifted on its pivotto present the desired character for printmg. The upper end of the rod12 moves over a fixed guide 11, and the extent of movement imparted tolever 15 by the finger levers arranged for such operation controls theposition of the guide.

Having thus described the invention, what is claimed as new is 1. Atypewriter having a type bar, a typehead movably supported on said bar,and a pivotally supported guide to receive the type-head in the printingoperation, said guide having a depending arm, and means for engaging thearm to vary the pivotal po- "sition of the guide at will, whereby suchchange in the position of the guide will vary the movement of thetype-head on the typebar as said head passes into the guide in theprintin operation.

2. A typewriter having a type-bar, a type head pivotally supportedthereon and formed with a plurality of type, a guide pivotally' mountedon the machine and adapted to receive the type-head in the printingoperation, an arm depending from said guide, and a finger operated barto engage the arm and the guide on its pivotal support to therebyposition the guide to vary the pivotal relation of the type-bar andtypehead in the printing operation.

In testimony whereof I affix my signature.

ATE VAN DER SCI-IAAFF.

